linux-kernel - Re: [PATCH] Remove vfs_init_caches

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Message-Id: <200801181216.16969.nickpiggin@yahoo.com.au>
Date:	Fri, 18 Jan 2008 12:16:16 +1100
From:	Nick Piggin <nickpiggin@...oo.com.au>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	linux-kernel@...r.kernel.org, Al Viro <viro@...iv.linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] Remove vfs_init_caches_early()

On Friday 18 January 2008 10:41, Rusty Russell wrote:
> vfs_init_caches_early() does nothing on IA-64 and x86-64 (unless you
> turn off CONFIG_NUMA): hashdist is set by default on these platforms.
>
> Maybe some obscure feature which requires VFS to be set up v. early
> (hence is broken in this configuration), or something arch-specific
> (which seems unlikely).

The use of hugepage mappings for your hashes rather than vmalloc
memory? Or did I misunderstand you? ... bootmem is needed for very
large physically contiguous allocations.
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